According to the classification of the use of polytetrafluoroethylene resin, polytetrafluoroethylene resin mainly includes suspension resin, dispersion resin and polytetrafluoroethylene powder. Compared with the suspension resin with a particle size range of 20 to 40 μm, the powder has a smaller particle size, a larger specific surface area, and a molecular weight generally ranging from tens of thousands to hundreds of thousands.Widely used in plastic processing modified plastics, modified resins, polytetrafluoroethylene cable materials; coating industry additives, high corrosion-resistant fluorocarbon coatings; printing inks, printer inkjet powders; transmission machinery advanced lubricants and high-load low-speed greases; textile roller non-stick coatings; military special materials and high value-added products.